19 results about "Mechanical stretching" patented technology

The utility model discloses mechanical stretching stamping equipment for an aluminum extrusion part, which relates to the technical field of aluminum extrusion part production and comprises a fixed mounting base plate, a stamping die plate is detachably mounted at the top end of one side of the fixed mounting base plate, and a stretching plate is fixedly connected to the top end of the side surface of the fixed mounting base plate. The stamping die disc is directly mounted on the fixed mounting base plate in a buckled mode, the aluminum materials stretch into the fixing frame through the feeding arrangement groove, the position, in the fixing frame, of the threaded extrusion rod is rotated by rotating the top disc, and the aluminum materials are extruded and fixed through the extrusion disc; the two sides clamp and fix aluminum materials at the same time, the stretching driving motor controls rotation of the threaded driving rod, so that the sliding adjusting base plates are directly controlled to slide at the top end in the stretching disc to adjust the positions, and the distance between the sliding adjusting base plates on the two sides is adjusted, so that stretching operation of the aluminum materials can be achieved.

The application discloses a mechanical stretching device, a seat unit and a zero-gravity zero-reclining wall sofa. The leg assembly of the mechanical stretching device comprises a fifth leg link, a tenth leg link and a main footrest. In the process of changing the mechanical stretching device from a sitting position to a TV position, the fifth leg link is approximately translated, the fifth leg link pushes the main footrest to rotate relative to the tenth leg link, and the main footrest is ensured to rotate in a small range after the leg assembly is lifted to a height. The support swing assembly is provided with a first limiting point. The composite limiting part of the first limiting point comprises a rigid part and a flexible part. The flexible part buffers the impact between the elastic deformation buffer base and the composite limiting part. The composite limiting part is also arranged in the base, the backrest assembly, the leg assembly, the connecting assembly and the support swing assembly in the mechanical stretching device, so that the mechanical stretching device is prevented from appearing a jerk and abnormally twisting in the overall movement process, and the mechanical stretching device is also prevented from emitting noise in the movement process.

The invention discloses a mechanical stretching device and a seat unit. The mechanical stretching device can prevent the mechanical stretching device from overturning when the mechanical stretching device is in a lying posture position. The mechanical stretching device further comprises a swing assembly and a supporting assembly, the swing assembly is movably connected to the base, the supporting assembly comprises a second supporting rod and a third supporting rod, one end of the third supporting rod is rotationally connected to the swing assembly, the other end of the third supporting rod is rotationally connected to the second supporting rod, and one end of the second supporting rod is movably connected to the leg assembly. A roller is arranged at the other end of the second supporting rod; in the process that the mechanical stretching device is changed from the sitting posture position to the TV posture position, the third supporting rod and the swing assembly are relatively static, and the second supporting rod rotates in the third direction so as to reduce the height of the rolling wheel; in the process that the mechanical stretching device is converted from the TV posture position to the lying posture position, the third supporting rod and the swing assembly move relatively, and the second supporting rod moves forwards in the first direction and rotates in the third direction so that the rolling wheel can be supported on the ground.

The application provides a dynamic switching module and application thereof. The dynamic switching module comprises a base, a movable part, a supporting rod and a gear. The gear is rotatably connected to the base. The gear and the upper part of the supporting rod are fixed in the circumferential direction. The movable part is provided with a row of meshing teeth which are in transmission engagement with the gear. The movable part moves linearly along the base after being triggered and drives the gear to rotate so as to rotate and open the supporting rod. The structure is simple, and the state switching operation is flexible and convenient. Then, the application of the dynamic switching module is provided. The appropriate supporting link of the mechanical stretching device is calculated and selected, and the triggering part is installed thereon. Then, the dynamic switching module is installed on the inner side of the front end of the armrest, so that the triggering part moves with the supporting link and triggers the dynamic switching module when the leg supporting assembly is about to be completely opened, so that the supporting rod is opened and supported on the ground. The dynamic switching module cooperates with the mechanical stretching device to provide effective support for the functional sofa, and avoids the situation of forward tilting and falling during the unfolding process of the leg supporting assembly.

The application discloses a one-way contraction type liquid crystal elastomer fiber and an intelligent fabric combined with a knitted structure, and belongs to the field of intelligent polymer materials. The fiber with the one-way contraction-maintenance characteristic is prepared by introducing a specific amount of photo-thermal response material into a liquid crystal elastomer system and combining internal and external double-stretching spinning processes. The fiber prepared by the method is pre-elongated by mechanical stretching, rapidly contracts under infrared light stimulation, maintains the contraction state after the light source is removed, and is restored by mechanical stretching again, so that the "on-off" type precise control is realized. The fiber is combined with the knitted structure to prepare the intelligent fabric with the local fixed-point driving capability; further, the controllable deformation of the material under the cooperation of multiple physical fields is utilized to construct a logic operation unit with "force" instead of "electricity", so that logical functions such as and, or and not are realized. The application can be applied to the fields of artificial muscles, intelligent wear, light-controlled switches and coreless logic devices.

The invention relates to the technical field of detection. The invention discloses an accelerated aging method for textiles, which comprises the following steps: S1, carrying out mild oscillation cleaning pretreatment to remove impurities, and after cleaning, standing in a preset temperature and humidity environment until the weight is constant; s2, partitioning and marking the pretreated textile structure; s3, S4, in the same preset temperature and humidity environment, graded mechanical stretching with gradually increased low, medium and high stress is applied to the partitioned textiles, and periodic friction is applied to the marked areas; and S5, detecting the color after friction. The preset temperature and humidity are one of normal temperature, normal humidity, constant temperature and constant humidity. Impurities are removed through pretreatment, the initial state is determined, graded stretching and targeted friction are applied according to the characteristics of the textiles in a partitioned mode, data accuracy is guaranteed in the same temperature and humidity environment, two time sequences meet different requirements, and actual aging is simulated. The detection whole process is tracked, special indexes are complementarily measured according to temperature and humidity, multiple performances are comprehensively measured, and a scientific basis is provided for textile quality evaluation, service life prediction and optimization.

The present application relates to a hemp fiber-based composite fabric sound-absorbing material and a preparation method thereof, and relates to the field of textile materials.The present application comprises a radial hemp fiber-based composite three-strand braid and a weft PP melt-blown cloth strip, the hemp fiber-based composite three-strand braid is woven by a hemp fiber-based composite non-woven cloth strip and two PP melt-blown cloth strips through a three-strand braid mode; the hemp fiber-based composite non-woven cloth is made of hemp fibers, hollow polyester fibers and low-melting-point 4080 through an air-laid process and a hot air bonding process; the radial and weft directions are woven in a plain weave mode to form an integral whole, and the hemp fiber-based composite fabric sound-absorbing material is prepared.The present application effectively solves the problems of low utilization rate of hemp fibers, poor mechanical tensile resistance and limited durability in the existing sound-absorbing materials.

The invention relates to the technical field of cloth tailoring, and discloses a cloth tailoring device for school uniform production, the cloth tailoring device comprises a workbench, the top of the workbench is provided with a stretching mechanism, a tailoring mechanism, a leveling mechanism and a discharging mechanism in sequence from left to right, and the discharging mechanism is used for movably supporting a material roller; the flattening mechanism is used for pressing and flattening cloth, the cutting mechanism is used for cutting the cloth, and the stretching mechanism is used for stretching the cloth in a fixed-length mode. Through the design of the stretching mechanism, an air extractor is controlled to work, suction force can be generated, the suction force can adsorb the end of cloth to the bottom of a stainless steel wire net, then a servo motor is controlled to work, a translation seat can be driven to integrally translate leftwards, the function of stretching the cloth at a fixed length can be achieved, and the working efficiency can be remarkably improved; manual measurement and stretching links are eliminated, operation time consumption and labor cost are reduced, and accurate mechanical stretching ensures that the size of the cloth is consistent.

The invention belongs to the field of cashmere product detection, and discloses a cashmere product surface detection device which comprises a frame serving as a supporting structure of the detection device. The cashmere conveying roller way is arranged on the frame and used for conveying cashmere products; the display screen is arranged on the outer side of the frame and is used for displaying detection data; the double-sided laying detection assembly comprises a surface defect camera module, a fabric flattening roller, a transmission assembly, a rolling piece and a bottom surface defect detection module; the fabric flattening roller is rotationally arranged in the frame; dynamic flattening is achieved through rolling friction of the drum-shaped curved surface of the fabric flattening roller and the rolling piece, the drum-shaped structure naturally flattens wrinkles through transverse component force, self-rotation of the rolling piece is matched with the conveying direction to form longitudinal auxiliary flattening, damage such as fiber breakage and fuzzing is avoided, the quality risk caused by difficult control of traditional mechanical stretching strength is solved, and the production efficiency is improved. The original texture and integrity of the cashmere product are protected.

The utility model discloses a swing locking assembly for a mechanical stretching device. The swing locking assembly comprises a base, a swing piece, a moving frame and a moving piece. The base plays a main body supporting role, the swinging piece is rotationally connected with the base and the moving frame and endows the mechanical stretching device with the swinging capacity, and the moving piece is used for driving device state switching; the moving part and the swinging part are respectively provided with a limiting part and a limiting groove, the limiting groove comprises a moving space and a locking end, and the position change of the limiting part in the limiting groove can control the swinging state of the device; when the limiting piece is in the movement space, the device can swing; entering a locking end, and enabling the device to be static; according to the assembly, through the ingenious structural design, the problem that an existing mechanical stretching device is insufficient in stability and flexibility when the sitting posture and the standing assisting state are switched is effectively solved, the stability of the standing assisting function is improved, the swing flexibility in the sitting posture state is optimized, and the assembly has wide application prospects.

The utility model relates to the field of leather stress improvement, and discloses a leather stress improvement device which comprises a winding column, the winding column is rotationally arranged above a workbench, a clamping groove is formed in the surface of the winding column, an arc-shaped plate is clamped in the clamping groove in a sliding mode, a fixing plate is fixed to the top face of the workbench, and the fixing plate is fixed to the top face of the workbench. A buckling and pressing plate is rotationally arranged on the top face of the fixing plate, the fixing plate and the buckling and pressing plate are rotationally arranged through a hinge, a plurality of fixing columns are fixed to the surface of the winding column, and blocking plates are rotationally inserted into the fixing columns. According to the leather winding device, the threaded ring moving downwards can apply downward acting force to the connecting arc plate, the magnitude of the acting force applied to leather by the buckling and pressing plate can be increased, then a worker places the other end of the leather into the clamping groove, and the other end of the leather can be fixed to the winding column; and then a worker tightens the leather by rotating the winding column, and mechanically stretches the leather, so that the internal stress is reduced.

The invention discloses a mechanical stretching device and a seat unit, the mechanical stretching device comprises a base, a base, a backrest assembly, a leg assembly, a connecting structure, a driving device, a swing assembly and a supporting assembly, the leg assembly and the backrest assembly are both rotatably connected to the base, and the leg assembly and the backrest assembly are arranged on the two opposite sides of the base; the connecting structure is connected to the leg assembly, the driving device is rotationally connected to the connecting structure, the swinging assembly is movably connected to the base, the supporting assembly is movably connected to the swinging assembly, one of the swinging assembly and the supporting assembly is provided with a rail, and the other one is provided with a guide piece; in the process that the mechanical stretching device is converted from the sitting posture position to the TV posture position, the guide piece and the track are relatively static; in the process that the mechanical stretching device is converted from the TV posture position to the lying posture position, the guide piece moves along the track so that the supporting assembly can be supported on the ground.

The utility model provides a device for measuring the elasticity modulus of graphene in water based on a mechanical stretching method, which comprises electronic graphene stretchers, a water tank and a graphene resistance measuring instrument, the electronic graphene stretchers are arranged on two sides of the water tank and are used for fixing graphene materials and applying external force to deform the graphene materials, and the graphene resistance measuring instrument is used for measuring the elasticity modulus of the graphene in the water. The graphene resistance measuring instrument is arranged outside the water tank and is connected with the graphene material in the water tank through a wire to measure the resistance of the graphene material, the initial resistance of the graphene material is measured through the graphene resistance measuring instrument, and then the force application handle is rotated to change the length of the graphene material; measuring the graphene material through a graphene resistance measuring instrument to obtain the resistance after the length is changed, measuring the tensile force of the rotating force application handle on the graphene material through a tensile force electronic display of the electronic graphene extensometer, and then substituting the measured physical quantity into an elastic modulus calculation formula to obtain the elastic modulus of the graphene material. The elasticity modulus of the graphene material in water can be completed.

The invention discloses a production process and equipment of a high-elastic antibacterial knitted fabric, and relates to the technical field of textiles. The method comprises the following steps: S1, knitting and weaving core-spun yarns: taking spandex filaments as core yarns, and externally wrapping cotton / polyester blended yarns for knitting and weaving; s2, pretreatment: treating in an alkali-oxygen bath at the temperature of 90-95 DEG C for 20-30 minutes; s3, mercerizing and stretching integrated treatment: immersing the fabric into a caustic soda solution with the concentration of 220-250g / L, synchronously starting a two-way stretching device, and applying intermittent warp-wise and weft-wise elastic expansion to the fabric. When the knitted fabric just starts to shrink, the two-way stretching device intervenes in the shrinkage process so as to intermittently stretch the knitted fabric for multiple times, the knitted fabric is repeatedly stretched and loosened, the shrinkage of the knitted fabric is controlled within a small range, a part of structure is kept, the situation that the knitted fabric is excessively shrunk is avoided, and the knitted fabric is more comfortable to wear. Therefore, the fiber damage of the knitted fabric during final mechanical stretching and resetting can be effectively reduced.

The application relates to the field of clothing fabric shaping devices, and discloses a clothing fabric shaping device, which is characterized in that an independent mechanical stretching area is additionally arranged after the high-temperature shaping area and before the cooling area; the fabric is shaped at high temperature, the molecular chain is in a high-elastic state, and then the fabric immediately enters the stretching area to receive forced mechanical stretching; the time sequence design of 'first relaxation and then stretching' can completely release the residual stress which has been loosened but not fixed at high temperature through external force traction, so that the fiber molecular chain is rearranged in the stretching state, and then enters the cooling area for quick fixing. The application has the advantages and effects of eliminating residual stress and avoiding fabric wrinkles.

The invention discloses an extremely cold-resistant down jacket fabric and a preparation method thereof. The preparation method comprises the following steps: mixing hot-pressing ceramic particles, a polyvinylidene fluoride polymer matrix, a thermoplastic polyurethane synergistic matrix and a heat conduction filler to prepare a hot-pressing composite material; s2, spinning the hot-pressing composite material prepared in the step S1 into hot-pressing composite fibers, and carrying out mechanical stretching or electric field polarization treatment; s2, weaving the hot-pressing composite fibers treated in the step S2 into a hot-pressing inner layer with a three-dimensional coil structure and a porous structure; laminating the high-elasticity blended material, the aerogel thermal insulation material and the waterproof breathable film material to form a compressed outer layer; the hot pressing inner layer is arranged on the inner side of the compression outer layer; the integrity is ensured through the lamination technology, when a wearer exercises, the pressure applied by the compression outer layer and the internal deformation work cooperatively, so that mechanical energy is converted into heat, and the heat is rapidly conducted through the heat conduction network; meanwhile, the aerogel layer blocks heat loss, and the PU film discharges moisture to keep dry and comfortable.

The invention relates to the technical field of textile material preparation, and discloses a high-elasticity anti-wrinkle polyester fabric innovative manufacturing process which comprises the following steps: S1, fiber potential construction: firstly, preparing gradient crystallization polyester DTY yarns with cross section crystallinity difference, and reserving amorphous regions for storing stress-induced deformation potential in core parts of the gradient crystallization polyester DTY yarns; s2, fabric structure optimization: weaving the gradient crystallization polyester DTY yarns under a constant low-tension condition to form loose gray cloth with microstructure redundancy; and S3, molecular memory induction: padding the loose gray cloth into a working solution containing a eutectic auxiliary agent. The polyester DTY yarn with the gradient crystal morphology is constructed, the limitation that common polyester is high in rigidity and poor in elasticity is broken through from the double dimensions of raw materials and the structure, and on the premise that polyurethane elastic fibers (spandex) are not used, the all-polyester fabric is endowed with excellent mechanical stretching resilience.

The utility model discloses a leveling device for knitted fabric, and relates to the technical field of knitted fabric processing. According to the technical scheme, the leveling device for the knitted fabric comprises a rack, a rocker arm is rotationally installed on the rack, a material containing table is installed on the rack, an engine is installed below the rack, a rocker is rotationally installed on the engine, a hydraulic arm is rotationally installed on the rocker, a flattening mechanism is slidably installed on the rocker arm, and a fixing mechanism is fixedly installed on the rocker arm; the fixing mechanism comprises a fixing plate, a fixing block is installed on the fixing plate, a sliding rod is installed on the fixing block in a sliding mode, a rod frame is fixedly installed on the sliding rod, a spring is installed on the rod frame, and the spring is fixedly connected with the fixing block; the flattening mechanism comprises a connecting frame, and two sets of fixing rods are installed on the connecting frame. And the fixed rod is provided with a push broach group and a roller frame. The utility model aims to provide the leveling device for the knitted fabric, so that the effect of flexibly stretching the knitted fabric in mechanical stretching and leveling is achieved.

The electronic textile and the preparation method provided by the application coat liquid metal on the surface of a fabric to form a liquid metal / fabric composite, plate silver on the surface of the liquid metal / fabric composite to obtain an outer silver shell, and the outer silver shell can be broken into many micro silver fragments after being stretched. When the fabric is not stretched, the micro silver fragments are connected to each other and cover the liquid metal / fabric composite. When the fabric is stretched and deformed, the micro silver fragments are scattered from each other, so that the liquid metal attached to the surface of the fabric is exposed. The electronic textile provided by the application uses the outer silver shell plated with silver as an encapsulating material, which not only effectively protects the inner liquid metal from oxidation, but also does not have a negative impact on the mechanical stretchability of the spandex. In addition, the outer silver shell can further improve the electromagnetic shielding performance, the electrical conductivity and the electrical heating performance of the fabric.